zhè / bù / jì / lù / piān / jiè / shào / le / rì / běn / yuán / zhù / jiāo / jì / xiàn / xiàng / de / shè / huì / bèi / jǐng这部纪录片介绍了日本援助交际现象的社会背景。This documentary introduces the social background of compensated dating in Japan.